1243101143112 has 32 divisors (see below), whose sum is σ = 3107780620800. Its totient is φ = 414363345984.

The previous prime is 1243101143099. The next prime is 1243101143117. The reversal of 1243101143112 is 2113411013421.

It is a super-2 number, since 2×1243101143112² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1243101143117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4417689 + ... + 4690647.

It is an arithmetic number, because the mean of its divisors is an integer number (97118144400).

Almost surely, 2^{1243101143112} is an apocalyptic number.

1243101143112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1243101143112 is an abundant number, since it is smaller than the sum of its proper divisors (1864679477688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243101143112 is a wasteful number, since it uses less digits than its factorization.

1243101143112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462725 (or 462721 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 1243101143112 its reverse (2113411013421), we get a palindrome (3356512156533).

The spelling of 1243101143112 in words is "one trillion, two hundred forty-three billion, one hundred one million, one hundred forty-three thousand, one hundred twelve".